When the first antibiotics became available in the late 1940s and early 1950s, these antibiotics were effective against all bacterial infections. today however, there are a multitude of antibiotic resistant bacterial infections. what conclusion can be drawn?

A conclusion that can be drawn from the statements given is that bacterial infections become resistant to antibiotics over time. Antibiotic-resistant bacteria are those that cannot be killed, and sometimes even spread more in the presence of antibiotics. This could be due to several reasons such as improper use of antibiotics.

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